function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Batalleria', 1],
    ['Bulletin of Geosciences', 1],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 2],
    ['DSIR Geology & Geophysics', 1],
    ['Deterville', 1],
    ['Geodiversitas', 3],
    ['Journal of Natural History', 3],
    ['Journal of the Malacological Society Australia', 2],
    ['Mémoires du Muséum national d\'Histoire naturelle', 48],
    ['Quarterly Journal of the Geological Society, London', 4],
    ['Renaud', 7],
    ['Transactions of the geological society of London, 2', 4],
    ['ZooKeys', 5],
    ['Zoosystematics and Evolution', 31],
    ['Zootaxa', 47],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=165)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);